POLYCAST 582
One Component, Flexible, Heat Cure Epoxy
DESCRIPTION:
Polycast 582 is a filled, one component, flexible, heat cure epoxy system designed for potting applications requiring low coefficient of thermal expansion.
| PROPERTIES - UNCURED: |
|
|
| Color, Visual |
Black |
|
| Viscosity, cps. |
25,000 |
ASTMD2393 |
| Specific Gravity |
1.47 |
|
| Pot Life @ 100° C, hours |
2-2.5 |
|
| Shelf Life @ 72o F, months (max.) |
3 |
|
| |
|
|
| PROPERTIES - CURED: |
|
|
| Hardness Durometer (Shore D) |
55-60 |
ASTMD 2240 |
| Tensile Strength, psi |
6,500 |
ASTMD 638 |
| Tensile Elongation, % |
60-75 |
ASTMD 638 |
| Coefficient of Thermal Expansion (cm/cm/°C) |
60 x 10-6 |
|
| Thermal Conductivity, BTU's (BTU-in/(ft2)(hr)(°F) |
4 |
|
| Useful Temperature Range, °C |
-55 - 155 |
|
| Dielectric Strength, volts/mil |
420 |
ASTMD 149 |
| Dielectric Constant, 60 Hz |
4.2 |
ASTMD 150 |
| Dissipation Factor, 60 Hz |
0.01 |
ASTMD 150 |
| Volume Resistivity, ohm-cm |
1.0 x 1015 |
ASTMD 257 |
CURE SCHEDULE:
6-8 hours @ 95°C - lowest shrinkage
3-5 hours @ 105°C
2-3 hours @ 120°C
NOTE: Post cure 2-3 hours at 150°C for optimum high temperature properties.
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